I am an International Luxury Model and Private Travel Concierge. For that very reason I do not currently list a base city. If you are interested in a day on my calendar that is left blank, it is best to book and reserve that day. During the initial screening and verification process I will inform you as to weather or not that day and time will work, prior to asking you to pay a deposit to confirm your selected time.
I do appreciate and prefer pre-bookings at least 24-48 hours in advance, as last minute appointments are hard to accommodate. Same day appointments are possible for clients I have seen prior, but only if the city you are seeing me in is noted on my calendar, for that day and for a nominal fee.